Cooling system for a farm machine

Abstract

A cooling system for a farm machine comprises a heat exchange assembly (1) having a plurality of radiators (2, 3, 4, 5) arranged one close to the other and so as to be passed through by a same air flow. According to the invention, at least a first radiator (3, 4, 5) can be shifted angularly with respect to a second radiator (2, 3, 4), so as to make cleaning operations for the latter easier.

Description

FIELD OF THE INVENTION[0001]The present invention refers to a cooling system for a farm machine.BACKGROUND OF THE INVENTION[0002]The engine of a farm machine is usually equipped with a cooling system comprising a heat exchange assembly including one or more radiators, typically a radiator for engine cooling, an intercooler and a radiator for gearshift oil cooling; in some cases the heat exchange assembly can also include a radiator belonging to an air conditioning unit of the farm machine cabin. Radiators are arranged so as to receive each a cooling air flow directed perpendicularly to their respective front surface.[0003]Traditionally, the heat exchange assembly is housed within a front bonnet of the machine, equipped with grille-like ventilation openings, provided on the side and / or on the front of said bonnet. Normally, said grille-like openings are designed to keep large-size impurities outside and enable an air filtration degree ensuring for most working activities in the field...

AI Technical Summary

Problems solved by technology

Under extreme conditions, i.e. when the machine works in highly contaminated conditions, the grille-like openings are not able to ensure a sufficiently high filtering degree to prevent radiators from getting choked up.

The consequent risk is an engine over-heating with subsequent performance loss.

Note that too high a filtration degree carried out by bonnet grille-like openings would jeopardize the passage of cooling air under normal conditions, i.e. during most of the working operations performed by the machine.

Cleaning operations on the heat exchange assembly are particularly uncomfortable since they have to be carried out in the fields.

Said solution results in a large size of the heat exchange assembly and difficulty in managing several cooling air flows, which have each to pass through a respective radiator.

The room available in the engine compartment of the machine, however, is usually quite narrow, which enables only a partial extraction of the concerned radiator with respect to the remaining part of the heat exchange assembly; this makes cleaning operations difficult and does not allow to remove completely foreign bodies from the whole front surface of the radiator partially taken out.

Images